1qwk421 Posted June 15, 2007 Author Report Posted June 15, 2007 (edited) here are the pics of the engine Edited June 15, 2007 by 1qwk421 Quote
dynodon Posted June 15, 2007 Report Posted June 15, 2007 You can still trail ride that way, just gives more fuel in the carbs. If you need parts locally, call Jeff aka 535 banshee he is in Naples area 239-253-2616 Quote
1qwk421 Posted June 16, 2007 Author Report Posted June 16, 2007 You can still trail ride that way, just gives more fuel in the carbs. If you need parts locally, call Jeff aka 535 banshee he is in Naples area 239-253-2616 do you think he would have the pistons and what bore size should i go up to? they are 68 mm. Quote
dynodon Posted June 16, 2007 Report Posted June 16, 2007 Very possible, I talked to him earlier today, and he was alreadt on the road..... He is taking his boys camping for the weekend. But he said he was gonna get online to read this thread, He can help you with the squish also Quote
1qwk421 Posted June 16, 2007 Author Report Posted June 16, 2007 (edited) Very possible, I talked to him earlier today, and he was alreadt on the road..... He is taking his boys camping for the weekend. But he said he was gonna get online to read this thread, He can help you with the squish also awsome :thumbsup: alot im new to this whole building banshee built alot of cars and street bikes so just trying to learn when you say squish what exactly does this mean? Edited June 16, 2007 by 1qwk421 Quote
dynodon Posted June 16, 2007 Report Posted June 16, 2007 The distance between the top of the piston to the dome . Call the number I gave you for Jeff, He has his phone with him. Talk to him, he knows I posted his number for you. If no answer, leave him a message. he is close enough, he could make sure your carbs are right as well. Quote
1qwk421 Posted June 17, 2007 Author Report Posted June 17, 2007 (edited) The distance between the top of the piston to the dome . Call the number I gave you for Jeff, He has his phone with him. Talk to him, he knows I posted his number for you. If no answer, leave him a message. he is close enough, he could make sure your carbs are right as well. i was told by some people that the cylinder walls are nickelcel plated? if they are how do i go about boring them? or could i get away with a fresh hone? Edited June 17, 2007 by 1qwk421 Quote
dynodon Posted June 17, 2007 Report Posted June 17, 2007 YES, they are nicosil plated, And NO you cannot just hone them, One might say that IF you had a diamond hone, you might be able to, BUT, Is it worth it to try ???? My opinion NO !! have them replated. I know Jeff is home now, so he should respond to the thread. He is local to you and can actually see what the cylinders look like. Quote
dynodon Posted June 18, 2007 Report Posted June 18, 2007 Jeff called me alittle bit ago, and he is having computer problems. If you need anthing, or parts call his number Quote
Fastrat Posted June 18, 2007 Report Posted June 18, 2007 (edited) Uh, maybe I'm not understanding this, but are you guys telling him it's okay to cut off either of his floats and let fuel pour unregulated into his carbs? I'm hoping not, cause his bike probably would never run right until he got a new set of floats and set them properly. Don't cut off the floats, they are extremely important at keeping the fuel level in a specific level so that the venturis pull a properly regulated amount of fuel into to motor to burn. They are not only there to keep fuel from overflowing. If not set properly, you'll never jet your bike right. I'm sure I'm not reading something right here, cause trail riding a bike that's overflowing and running waaayyy to fat wouldn't be a whole lotta fun. On my computer, it looks like there's a hole in the cylinder, if so get them resleeved and get bigger bowls on the carbs, I would check out the bottom end while it's apart, there's a chance you did some damage to your crank. I just can't believe that your motor is at 0 comp and no chunks of metal are not where they should be. GL Edited June 18, 2007 by Fastrat Quote
1qwk421 Posted June 18, 2007 Author Report Posted June 18, 2007 Uh, maybe I'm not understanding this, but are you guys telling him it's okay to cut off either of his floats and let fuel pour unregulated into his carbs? I'm hoping not, cause his bike probably would never run right until he got a new set of floats and set them properly. Don't cut off the floats, they are extremely important at keeping the fuel level in a specific level so that the venturis pull a properly regulated amount of fuel into to motor to burn. They are not only there to keep fuel from overflowing. If not set properly, you'll never jet your bike right. I'm sure I'm not reading something right here, cause trail riding a bike that's overflowing and running waaayyy to fat wouldn't be a whole lotta fun. On my computer, it looks like there's a hole in the cylinder, if so get them resleeved and get bigger bowls on the carbs, I would check out the bottom end while it's apart, there's a chance you did some damage to your crank. I just can't believe that your motor is at 0 comp and no chunks of metal are not where they should be. GL there is not a hole in the cylinder what you see is a desent scuff mark around the port it has 0 comp because the ring was siezed in the piston ringland there is no chunks of metal on broken pistons. Quote
dynodon Posted June 18, 2007 Report Posted June 18, 2007 If he is going to be drag racing, YES cut one of the floats off to keep fuel in the carbs. Thats funny, I have billet bowls, and one of the floats cut off in each carb, and mine runs great, infact, I have one of the fastest 421 cubs in the state. You can take that to the bank!!!!!!!! Quote
Fastrat Posted June 19, 2007 Report Posted June 19, 2007 (edited) If he is going to be drag racing, YES cut one of the floats off to keep fuel in the carbs. Thats funny, I have billet bowls, and one of the floats cut off in each carb, and mine runs great, infact, I have one of the fastest 421 cubs in the state. You can take that to the bank!!!!!!!! Maybe it'll run fine for a few hundred feet wide open, but he specifically said something about trail riding. Nobody but a drag racer would benefit from overloading their bowls. The floats keep the fuel at a certain level in the carb so that when the air passes thru it pulls only a specific amount of fuel, that's how a carb works, it's called venturi principle and all carbuerators work on that concept. By cutting off the floats, you are ruining the metering effectiveness of the carb everywhere except full throttle, and maybe idle(and that's if you somehow don't have gas pouring out the overflow). The only reason it could work at full throttle is because the motor sucks enough gas at WOT and only the main is relevant to the metering process for that few hundred feet. I've had a float stick open on mine, and it caused nothing but problems, bad running and overflowing fuel. I don't have experience running a 421 in drag, so I'm not discounting you or yours, but what I would suggest is that instead of cutting up and ruining a carb, try removing the needle valve off the float so it can't shutoff. Same effect, but totally reversible, and if it works in the drag, GREAT, either way, you can put it back for trails... On the cylinders, if you're sure there's nothing in there, you should be alright, like I said, on my computer there looks to be a hole. Edited June 19, 2007 by Fastrat Quote
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